On 14/11/2002 11:17:57 Geoffrey Leeming wrote: >Thanks for the reply. Unfortunately that tells me what the PDC thinks is >there, rather than what necessarily *is* there :-) One of the many reasons I >run this script is to check for unauthorised machines on our physical network, >so I need to explicitly check every machine that's pingable inside our firewall. >
If it's a SMB machine (Windows, Samba, etc) it's sure to emit the usual "NETBIOS chatter". Listening to that with e.g. Ethereal (NIC in promiscuous mode) would yield a list of IP addresses. You could do something like this: Put NIC in promiscuous mode; # Perhaps the difficult bit, libpcap might help Listen to everything on the network Record source addresses (perhaps a hash) Check source addresses -- Csaba Ráduly, Software Engineer Sophos Anti-Virus email: [EMAIL PROTECTED] http://www.sophos.com US Support: +1 888 SOPHOS 9 UK Support: +44 1235 559933 _______________________________________________ Perl-Win32-Users mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
